Bellman, Richard Ernest,  1920- <br/><br/>
Differential-difference equations / 
Richard Bellman [and] Kenneth L. Cooke. 
 - New York :  Academic Press,  c1963. 
 - 462 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliography. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations.
<br/><br/><label>Dewey Class. No.: </label>515.35  / BED 1963